公开(公告)号：US11134287B1

公开(公告)日：2021-09-28

申请号：US16948425

申请日：2020-09-17

Applicant: Amazon Technologies, Inc.

Inventor： Yongjun Wu ,  Abhishek Kumar ,  Kyle Alexander Woo ,  Mukund Manikarnike

IPC: H04N21/242 ,  H04N21/237 ,  H04N21/234 ,  H04N21/233 ,  H04N21/2343 ,  H04N21/44 ,  H04N21/23

Abstract: Techniques are described for synchronizing audio content and video content when server-side fragment insertion techniques are used.

公开(公告)号：US11057660B1

公开(公告)日：2021-07-06

申请号：US16870793

申请日：2020-05-08

Applicant: Amazon Technologies, Inc.

Inventor： Avinash Priya Khurana ,  Timothy Prins ,  Yongjun Wu

IPC: H04N7/025 ,  H04N21/262 ,  H04N21/2343 ,  H04N21/235 ,  H04N21/234

Abstract: Methods and apparatus are described for estimating the peak bit rate for content and specifying the BANDWIDTH tag value for HLS content. This disclosure also describes techniques by which live content and VOD content can be stitched together in a way that harmonizes the different requirements for the BANDWIDTH tag for the different types of content.

公开(公告)号：US11005908B1

公开(公告)日：2021-05-11

申请号：US16709558

申请日：2019-12-10

Applicant: Amazon Technologies, Inc.

Inventor： Yongjun Wu ,  Jake O'Halloran ,  Sriram Divakar

IPC: H04L29/06 ,  H04N21/24 ,  H04N21/2187 ,  H04N21/2662 ,  H04N21/84

Abstract: Methods and apparatus are described by which media player functionality such as, for example, adaptive bitrate selection may be supported in media players on iOS, tvOS, or MacOS devices for video content encoded using the HEVC codec. Each video segment reference in the manifest includes two associated HLS-compliant tags, a discontinuity tag followed by a map segment tag.

公开(公告)号：US10979477B1

公开(公告)日：2021-04-13

申请号：US16364622

申请日：2019-03-26

Applicant: Amazon Technologies, Inc.

Inventor： Jeremy Matthew Cabrido ,  Vinay Raj ,  Yongjun Wu

IPC: G06F15/16 ,  H04L29/06 ,  H04N21/242 ,  H04N21/43

Abstract: Techniques are described for synchronizing video of a live event with separately generated metadata relating to the live event. Timing information representing a delay associated with the encoding and packaging pipeline is determined for each origin that produces a set of content streams, and then provided in the form of a synchronization offset in the client manifest for various streaming technologies. The client device requests the metadata, and synchronizes the metadata with content segments using timing information associated with each and the synchronization offset communicated in the manifest.

公开(公告)号：US10904639B1

公开(公告)日：2021-01-26

申请号：US15494914

申请日：2017-04-24

Applicant: Amazon Technologies, Inc.

Inventor： Nicholas James Benson ,  Andrew Glass ,  Srikanth Kiran Kotagiri ,  Lei Li ,  Stefan Christian Richter ,  Rakesh Tangirala ,  Amarsingh Buckthasingh Winston ,  Yongjun Wu

IPC: H04L29/06 ,  H04L29/08 ,  H04N21/81 ,  H04N21/2187 ,  H04N21/234 ,  H04N21/262 ,  H04N21/472 ,  H04N21/482 ,  H04N21/845 ,  H04N21/8547 ,  H04N21/239 ,  H04N21/2665 ,  H04N21/231

Abstract: Techniques are described for server-side fragment insertion and delivery of media content. After receiving a request to play back media content, a manifest is generated that includes fragments associated with the requested media content and fragments associated with different media content. A client device requests fragments from a media server according to the manifest, and the media server provides the correct fragment in response to the request.

公开(公告)号：US10904588B1

公开(公告)日：2021-01-26

申请号：US16296642

申请日：2019-03-08

Applicant: Amazon Technologies, Inc.

Inventor： Nathaniel Stewart ,  Lei Li ,  Mairo Pedrini ,  Patrick Joseph Lewis ,  Ravindra Ganti ,  Parminder Singh ,  Gaurav Saxena ,  Kent Haakan Karlsson ,  Yongjun Wu

IPC: H04N21/234 ,  H04N21/2187 ,  H04N21/442

Abstract: Methods and apparatus are described for stitching independently encoded content streams together such that they appear to be part of a single streaming session.

公开(公告)号：US10834158B1

公开(公告)日：2020-11-10

申请号：US15934291

申请日：2018-03-23

Applicant: Amazon Technologies, Inc.

Inventor： David Wayne Bourgoyne ,  Amarsingh Buckthasingh Winston ,  Lei Li ,  Yongjun Wu

IPC: H04L9/32 ,  H04L29/06 ,  G06T1/00

Abstract: Techniques are described for encoding information in manifest data in a way that enables identification of a version of media content. Such a capability may be used to identify dynamic content inserted into the media content for the purpose of tracking the effect of the dynamic content on user generated feedback. This capability might also be used to identify a user or device associated with a particular copy of the media content for anti-piracy purposes.

公开(公告)号：US20200186848A1

公开(公告)日：2020-06-11

申请号：US16259468

申请日：2019-01-28

Applicant: Amazon Technologies, Inc.

Inventor： Ravindra Ganti ,  . Parminder Singh ,  John F.X. Gaquin ,  Michael James Montgomery ,  Charles M. Cordova ,  Yongjun Wu

IPC: H04N21/231 ,  H04N21/2187 ,  H04N21/233 ,  H04N21/2387 ,  H04N21/433

Abstract: Methods and apparatus are described for making broadcast content available as an on-demand asset soon after all of the video fragments of the broadcast content have been made available. As the video fragments of the broadcast content are made available, they are requested and archived. When all of the fragments for the duration of the broadcast content are available (e.g., a live event ends), a VOD-style manifest is generated and the archived fragments are made available for downloading or streaming using the VOD-style manifest.

公开(公告)号：US20190327504A1

公开(公告)日：2019-10-24

申请号：US15960186

申请日：2018-04-23

Applicant: Amazon Technologies, Inc.

Inventor： Tarun Jindal ,  Ron Searl ,  Kyle Alexander Woo ,  Abhishek Kumar ,  Yongjun Wu

IPC: H04N21/234 ,  H04N21/81

Abstract: Techniques are described for providing media presentations that include content originating from multiple sources in ways that are effectively transparent to end user devices. Manifest data provided to an end user device include a key encoded in the URL for each of the content fragments. The key encodes one or more interstitial periods of secondary content within the overall presentation of primary content. When a media server receives a content request from the end user device, the media server determines from the key encoded in the URL and the range of content requested whether the request corresponds to the primary content or the secondary content.

公开(公告)号：US10313419B1

公开(公告)日：2019-06-04

申请号：US15421143

申请日：2017-01-31

Applicant: Amazon Technologies, Inc.

Inventor： Charles Benjamin Franklin Waggoner ,  Marc Joliveau ,  Stefan Christian Richter ,  Yongjun Wu

IPC: G06F15/16 ,  H04L29/06 ,  H04L29/08 ,  H04N21/2343

Abstract: Techniques are described that enable the use of variable bit rate (VBR) encoding for live content.